10 Pcs Dental Surgical Periotome Anterior Posterior Double Ended Hollow Handle Instruments Manufactured from AISI 420 German stainless steel. Product Conforms to ISO 9001, CE-Quality Mark, ISO 13485, FDA and other Quality Standards Highly polished finish for aesthetic and corrosion resistance High Degree of Precision and Flexibility while conducting the Clinical Procedure. Premium Quality Stainless Steel with Superior Craftsmanship.